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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 4 — Feb. 24, 2014
  • pp: 4075–4082

Generation of octave-spanning supercontinuum by Raman-assisted four-wave mixing in single-crystal diamond

Chih-Hsuan Lu, Li-Fan Yang, Miaochan Zhi, Alexei V. Sokolov, Shang-Da Yang, Chia-Chen Hsu, and A. H. Kung  »View Author Affiliations


Optics Express, Vol. 22, Issue 4, pp. 4075-4082 (2014)
http://dx.doi.org/10.1364/OE.22.004075


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Abstract

An octave-spanning coherent supercontinuum is generated by non-collinear Raman-assisted four-wave mixing in single-crystal diamond using 7.7 fs laser pulses that have been chirped to about 420 fs in duration. The use of ultrabroad bandwidth pulses as input results in substantial overlap of the generated spectrum of the anti-Stokes sidebands, creating a phase-locked supercontinuum when all the sidebands are combined to overlap in time and space. The overall bandwidth of the generated supercontinuum is sufficient to support its compression to isolated few-to-single cycle attosecond transients. The significant spectral overlap of adjacent anti-Stokes sidebands allows the utilization of straight-forward spectral interferometry to test the relative phase coherence of the anti-Stokes outputs and is demonstrated here for two adjacent pairs of sidebands. The method can subsequently be employed to set the relative phase of the sidebands for pulse compression and for the synthesis of arbitrary field transients.

© 2014 Optical Society of America

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.5650) Nonlinear optics : Raman effect
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Nonlinear Optics

History
Original Manuscript: December 3, 2013
Revised Manuscript: February 9, 2014
Manuscript Accepted: February 10, 2014
Published: February 13, 2014

Citation
Chih-Hsuan Lu, Li-Fan Yang, Miaochan Zhi, Alexei V. Sokolov, Shang-Da Yang, Chia-Chen Hsu, and A. H. Kung, "Generation of octave-spanning supercontinuum by Raman-assisted four-wave mixing in single-crystal diamond," Opt. Express 22, 4075-4082 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-4-4075


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